Adobe XD
Figma
UXpin
Sketch
ProtoPie
Invision
Mockplus
Balsamiq
Multisim
LTspice
QUCS
EasyEDA
Proteus PCB design
KiCad
Pspice
Altium Designer
Adobe XDFigma - Team-based interface design, Figma lets you collaborate on designs in real time.
LTspice - LTspiceยฎ is a high performance SPICE simulation software, schematic capture and waveform viewer with enhancements and models for easing the simulation of analog circuits.
UXpin - Design is really about solving problems. UXPin is the UX Design Platform that gets that right.
QUCS - Qucs, briefly for Quite Universal Circuit Simulator, is an integrated circuit simulator which means you are able to setup a circuit with a graphical user interface (GUI) and simulate the large-signal, small-signal and noise behaviour of the circuit.
Sketch - Professional digital design for Mac.
EasyEDA - EasyEDA - Web-based EDA suite; runs in browser.